[mythtv-users] Screen Blanking

[Per Jørgensen]

R. G. Newbury wrote:
> David Whyte wrote:
>> On Mon, Feb 16, 2009 at 12:11 AM, Jason Gauthier 
>> <jgauthier at lastar.com> wrote:
>>> Hey all,
>>>
>>>
>>>
>>>   I've taken this as long and as far as I can.  Now, I need some 
>>> ideas :(
>>>
>>>
>>>
>>> My frontend only display keeps going off.  This isn't your normal
>>> screensaver or DPMS off.  This looks like a video sync problem or 
>>> something.
>>>
>>> I'm using a Sony 32" LCD TV attached via VGA.
>>>
>>>
>>>
>>> I can watch TV or recordings for an hour, or two.. and it's fine.  
>>> Other
>>> times, I will watch for 5 minutes and it goes off.
>>>
>>> Once it's off, there is no coming back on.  I have to reboot.
>>>
>>>
>>>
>>> What information can I provide to help figure this out?   I'm running
>>> mythbuntu, completely patched up. My video card appears to be an Intel
>>> 82865G.
>>>
>>>
>>
>> I upgraded my mythbuntu 7.10 box by apt-get dist-upgrades on the
>> weekend to 8.04.  Everything went quite nicely, except I too had a
>> problem whereby the FEs would randomly decide that they want to blank
>> screen and they wouldn't come back to life.  Nothing from a keyboard,
>> SSH, or the remote.  (I too have Intel chipsets, these machines being
>> Aopen MP915-P and MP915-X machines).
>>
>> I have done plenty of head scratching and last night just decided to
>> do a clean install of mythbuntu 8.04 on one of them.  So far, so good.
>>  I managed to leave it on the menu overnight and this morning when I
>> turned the TV on, the screen was blank.  Pressed the remote button and
>> the screen came alive and I was back at the menu.  I have left the FE
>> switched on today and will probably leave it another full day, but if
>> all goes well, I will just clean install all my other FEs too!
>>
>> This screen blanking seems to be a common problem on this list and on
>> the mythbuntu forums, but one that has no clear fix.  I hate not
>> knowing why something is broken (since I am never know if it is
>> actually fixed) but I have had such a crap weekend because of this
>> upgrade that if this re-install fixes it, I am happy :P
>
> I had a similar problem with a fedora8 install. The machine seemed to 
> go into a deep suspend state: the fan continued to run as if the box 
> was up, but the motherboard was effectively dead: no ssh access and no 
> reaction to the keyboard or mouse.
>
> I ended up adding the following to my /etc/rc.d/rc.local file:
>
> /usr/bin/xset -d :0 s noblank
> /usr/bin/xset -d :0 s off
> /usr/bin/xset -d :0 -dpms
>
> I'm not sure whether the first two don't do the same thing. And I not 
> sure that the last doesn't do what the first two do! But it works. In 
> addition I have all suspend/blank etc times in the ServerFlags section 
> of xorg.conf set to "0" and the DPMS option in the Monitor section.
>
> Next step will be to actually figure out what the 'acpi=' stuff on the 
> kernel command line does!
>
> Geoff
>
>
>
>
>
>
>
Well - Not shure if this is the problem.
But You're saying running on Intel - Which have problems with the 
graphiccards - I have several Asus EEE B202 with Intel and they doing 
the same thing when screen is blanc.
I haven't figure out a solution yet for the problem.- Unless I change 
from DVI output to VGA output - Then my blancing stops.
But switching back to DVI or HDMI the blancing come back at once !